另外，24小时保安服务、闭路电视监控、精密警报及出入管理控制系统均有效确保高度严密的保安。
In addition, the 24-hour security service, CCTV monitoring, alarm and access control precision control systems are effective in ensuring a high degree of tight security.
产品主要应用于智能化小区，防盗报警，楼宇自控，可对讲视，闭路电视监控，广播音响，及远程抄表系统工程线缆。
Products are mainly used in intelligence community, anti-theft alarm, building automation can be as intercom, CCTV, radio, audio, and remote meter reading systems engineering cable.
本文介绍了闭路电视在高速公路监控上的应用，重点介绍了隧道部分闭路监控系统的结构、设备选型、传输方式等。
The paper introduces the application of CCTV in freeway, especially introduces the structure, selection of equipment, transmission mode of the CCTV system in tunnels.
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